“/”应用程序中的服务器错误。求解

[qq_42787919]

[NullReferenceException: 未将对象引用设置到对象的实例。]
System.Data.Linq.SqlClient.QueryConverter.VisitInvocation(InvocationExpression invoke) +490
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +1424
System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +30
System.Data.Linq.SqlClient.QueryConverter.VisitBinary(BinaryExpression b) +35
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +505
System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +30
System.Data.Linq.SqlClient.QueryConverter.VisitBinary(BinaryExpression b) +35
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +505
System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +30
System.Data.Linq.SqlClient.QueryConverter.VisitWhere(Expression sequence, LambdaExpression predicate) +128
System.Data.Linq.SqlClient.QueryConverter.VisitSequenceOperatorCall(MethodCallExpression mc) +4624
System.Data.Linq.SqlClient.QueryConverter.VisitMethodCall(MethodCallExpression mc) +69
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +1081
System.Data.Linq.SqlClient.QueryConverter.VisitSelect(Expression sequence, LambdaExpression selector) +25
System.Data.Linq.SqlClient.QueryConverter.VisitSequenceOperatorCall(MethodCallExpression mc) +1921
System.Data.Linq.SqlClient.QueryConverter.VisitMethodCall(MethodCallExpression mc) +69
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +1081
System.Data.Linq.SqlClient.QueryConverter.VisitOrderBy(Expression sequence, LambdaExpression expression, SqlOrderType orderType) +107
System.Data.Linq.SqlClient.QueryConverter.VisitSequenceOperatorCall(MethodCallExpression mc) +6568
System.Data.Linq.SqlClient.QueryConverter.VisitMethodCall(MethodCallExpression mc) +69
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +1081
System.Data.Linq.SqlClient.QueryConverter.VisitAggregate(Expression sequence, LambdaExpression lambda, SqlNodeType aggType, Type returnType) +81
System.Data.Linq.SqlClient.QueryConverter.VisitSequenceOperatorCall(MethodCallExpression mc) +5414
System.Data.Linq.SqlClient.QueryConverter.VisitMethodCall(MethodCallExpression mc) +69
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +1081
System.Data.Linq.SqlClient.QueryConverter.ConvertOuter(Expression node) +100
System.Data.Linq.SqlClient.SqlProvider.BuildQuery(Expression query, SqlNodeAnnotations annotations) +114
System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +132
System.Data.Linq.DataQuery`1.System.Linq.IQueryProvider.Execute(Expression expression) +23
System.Linq.Queryable.Count(IQueryable`1 source) +196
Line6_Fault.ShowData(Boolean sc) +4441
Line6_Fault.Page_Load(Object sender, EventArgs e) +1160
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
System.Web.UI.Control.OnLoad(EventArgs e) +95
System.Web.UI.Control.LoadRecursive() +59
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +678

[EdsionWang]

你的Linq查询没有查到数据，具体代码可以到看下面这两行附近找找

 Line6_Fault.ShowData(Boolean sc) +4441
 Line6_Fault.Page_Load(Object sender, EventArgs e) +1160

[正怒月神]

调试，学会调试，你就学会了精髓